| 475714 | May 22, 1998 | May 22, 1998 | Quintana Pet. Corp. | Tom O'Connor (5800 SD) FLD Unit #A014 | 7,565 | 39130158 |
| 476255 | May 13, 1998 | May 13, 1998 | Pennzoil Exploration & Prod. Co. | Lambert, M. F. #147 | 5,750 | 39131456 |
| 476161 | May 13, 1998 | May 13, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 4 | 5,766 | 39100271 |
| 476203 | May 12, 1998 | May 12, 1998 | Wiser Oil Company, The | Welder "P" #57 | 6,200 | 39132239 |
| 476203Amendment | May 12, 1998 | May 12, 1998 | Wiser Oil Company, The | Welder "P" #57 | 6,200 | 39132239 |
| 475883 | May 5, 1998 | May 5, 1998 | C & E Operating, Inc. | Schmidt #1 | 6,200 | 39132238 |
| 475832 | May 5, 1998 | May 5, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 65 | 5,850 | 39130254 |
| 475717 | May 1, 1998 | May 1, 1998 | Quintana Pet. Corp. | Tom O'Connor (5800 SD) FLD Unit #A016 | 6,754 | 39130235 |
| 475716 | May 1, 1998 | May 1, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'B' #9 | 5,925 | 39100515 |
| 475677 | Apr 29, 1998 | Apr 29, 1998 | Christopher Oil & Gas Inc | Collins, Pearl Swift #2 | 8,400 | 39132199 |
| 475676 | Apr 28, 1998 | Apr 28, 1998 | Christopher Oil & Gas Inc | Schirmer "C-120" #1 | 6,509 | 39132124 |
| 475645 | Apr 27, 1998 | Apr 27, 1998 | C & E Operating, Inc. | Heard #1 | 6,200 | 39132237 |
| 475547 | Apr 23, 1998 | Apr 23, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'B' #30 | 6,004 | 39100492 |
| 475045 | Apr 8, 1998 | Apr 8, 1998 | Cliffwood Production Co. | Rooke "A" #1 | 6,700 | 39132235 |
| 475045Amendment | Apr 8, 1998 | Apr 8, 1998 | Cliffwood Production Co. | Rooke "A" #1 | 6,510 | 39132235 |
| 475044 | Apr 8, 1998 | Apr 8, 1998 | Cliffwood Production Co. | Rooke "B" #1 | 6,700 | 39132236 |
| 475044Amendment | Apr 8, 1998 | Apr 8, 1998 | Wofford, C. J. | Rooke "B" #1 | 6,700 | 39132236 |
| 475044Amendment | Apr 8, 1998 | Apr 8, 1998 | Wofford, C. J. | Rooke #B 1 | 6,500 | 39132236 |
| 474952 | Apr 2, 1998 | Apr 2, 1998 | T - C Oil Company | O'Connor "H" #H 24 | 1,200 | 39103768 |
| 474859 | Apr 1, 1998 | Apr 1, 1998 | Quintana Pet. Corp. | Heard, Fannie V. W., Mrs. #36 | 5,925 | 39100566 |
| 474825 | Mar 31, 1998 | Mar 31, 1998 | C & E Operating, Inc. | Swyka #1 | 6,050 | 39132234 |
| 474695 | Mar 25, 1998 | Mar 25, 1998 | Copano Company | O'Connor, Thomas "B" #B38 | 5,806 | 39101618 |
| 474509 | Mar 19, 1998 | Mar 19, 1998 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #B 10 | 5,800 | 39101880 |
| 474509Amendment | Mar 19, 1998 | Mar 19, 1998 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #B 10 | 5,800 | 39101880 |
| 474509Amendment | Mar 19, 1998 | Mar 19, 1998 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #B 10 | 5,800 | 39101880 |
| 474373 | Mar 19, 1998 | Mar 19, 1998 | C & E Operating, Inc. | Welder Heirs #2 | 6,350 | 39132232 |
| 474373Amendment | Mar 19, 1998 | Mar 19, 1998 | C & E Operating, Inc. | Welder Heirs #2 | 6,500 | 39132232 |
| 474467 | Mar 18, 1998 | Mar 18, 1998 | Wiser Oil Company, The | Vincent "A" #6 | 6,200 | 39132233 |
| 474095 | Mar 11, 1998 | Mar 11, 1998 | T - C Oil Company | O'Connor, Dennis et al "G" #10 | 6,400 | 39132231 |
| 474051 | Mar 6, 1998 | Mar 6, 1998 | C & E Operating, Inc. | Thomson-Barrow Corp. C #11 | 6,200 | 39132230 |
| 473894 | Mar 2, 1998 | Mar 2, 1998 | Wiser Oil Company, The | Welder "R" #51 | 6,200 | 39132229 |
| 473438 | Mar 2, 1998 | Mar 2, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'C' #7 | 6,500 | 39132228 |
| 473686 | Feb 27, 1998 | Feb 27, 1998 | Copano Gas Unit | Copano Gas Unit #23 | 4,893 | 39101586 |
| 473680 | Feb 27, 1998 | Feb 27, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'A' #77 | 4,500 | 39100466 |
| 473692 | Feb 26, 1998 | Feb 26, 1998 | Quintana Pet. Corp. | Tom O'Connor (5800 SD) FLD Unit #Q016 | 5,900 | 39101509 |
| 473462 | Feb 26, 1998 | Feb 26, 1998 | Quintana Pet. Corp. | Heard, Mrs. Fannie V. W. #75 | 4,515 | 39100721 |
| 473315 | Feb 20, 1998 | Feb 20, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 34D | 5,400 | 39100287 |
| 473414 | Feb 17, 1998 | Feb 17, 1998 | Wiser Oil Company, The | Welder -G- #48 | 6,600 | 39132225 |
| 473414Amendment | Feb 17, 1998 | Feb 17, 1998 | Neumin Production Company | Welder -G- #48 | 6,600 | 39132225 |
| 473413 | Feb 17, 1998 | Feb 17, 1998 | Wiser Oil Company, The | Welder -Q- #46 | 6,300 | 39132227 |
| 473412 | Feb 17, 1998 | Feb 17, 1998 | Wiser Oil Company, The | Welder 'D' #47 | 6,200 | 39132226 |
| 473412Amendment | Feb 17, 1998 | Feb 17, 1998 | Wiser Oil Company, The | Welder 'D' #47 | 6,200 | 39132226 |
| 473346 | Feb 17, 1998 | Feb 17, 1998 | C & E Operating, Inc. | St. John Unit #1 | 6,300 | 39132224 |
| 472868 | Feb 13, 1998 | Feb 13, 1998 | Gilster, Ralph R. III | BP #3 | 7,700 | 39132220 |
| 472894 | Feb 12, 1998 | Feb 12, 1998 | Quintana Pet. Corp. | Williams, Maude et al 'C' #6 | 6,500 | 39132221 |
| 473180 | Feb 10, 1998 | Feb 10, 1998 | Dale Operating Company | Baptist #3 | 6,400 | 39132223 |
| 473180Amendment | Feb 10, 1998 | Feb 10, 1998 | Dale Operating Company | Baptist #3 | 6,400 | 39132223 |
| 473180Amendment | Feb 10, 1998 | Feb 10, 1998 | Dale Operating Company | Baptist #3 | 7,500 | 39132223 |
| 473180Amendment | Feb 10, 1998 | Feb 10, 1998 | Dale Operating Company | Baptist #3 | 7,500 | 39132223 |
| 473179 | Feb 10, 1998 | Feb 10, 1998 | Dale Operating Company | Baptist #1 | 6,400 | 39132222 |
| 473091 | Feb 6, 1998 | Feb 6, 1998 | Wiser Oil Company, The | Welder "G" #27 | 2,930 | 39132171 |
| 472862 | Feb 5, 1998 | Feb 5, 1998 | Copano Gas Unit | Copano Gas Unit #22 | 5,425 | 39101663 |
| 472817 | Feb 4, 1998 | Feb 4, 1998 | Gilster, Ralph R. III | BP #2 | 6,300 | 39132219 |
| 472831 | Jan 30, 1998 | Jan 30, 1998 | Wiser Oil Company, The | Welder "M" #42 | 6,200 | 39132218 |
| 472828 | Jan 30, 1998 | Jan 30, 1998 | Wiser Oil Company, The | Welder 'G' #32 | 6,100 | 39132190 |
| 472740 | Jan 29, 1998 | Jan 29, 1998 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #44 | 5,926 | 39101130 |
| 472634 | Jan 26, 1998 | Jan 26, 1998 | Wiser Oil Company, The | Welder 'D' #44 | 6,200 | 39132217 |
| 472363 | Jan 23, 1998 | Jan 23, 1998 | T - C Oil Company | O'Connor #15 | 5,450 | 39100251 |
| 472521 | Jan 22, 1998 | Jan 22, 1998 | Wiser Oil Company, The | Welder "N" #43 | 4,000 | 39132216 |
| 472243 | Jan 15, 1998 | Jan 15, 1998 | Wiser Oil Company, The | Welder "BA" #38 | 5,800 | 39132215 |
| 472098 | Jan 13, 1998 | Jan 13, 1998 | C & E Operating, Inc. | Thomson-Barrow Corp. C #10 | 6,200 | 39132214 |
| 472097 | Jan 13, 1998 | Jan 13, 1998 | C & E Operating, Inc. | Welder Heirs #1 | 6,100 | 39132213 |
| 471912 | Jan 13, 1998 | Jan 13, 1998 | Pedeco, Inc. | Olson #1 | 6,580 | 39132178 |
| 471935 | Jan 8, 1998 | Jan 8, 1998 | Anderson Oil Corporation | Kentucky-Fagan #6 | 3,900 | 39132212 |
| 471857 | Jan 5, 1998 | Jan 5, 1998 | Emerald Oil & Gas LC | O'Connor, Mary Ellen #A 3 | 6,030 | 39101893 |
| 471807 | Jan 2, 1998 | Jan 2, 1998 | Wiser Oil Company, The | Welder "C" #40 | 6,200 | 39132211 |
| 471406 | Jan 2, 1998 | Jan 2, 1998 | Simray Oil & Gas, Inc. | Schirmer, Henry #18 | 5,700 | 39132156 |
| 471148 | Dec 19, 1997 | Dec 19, 1997 | Bishop Petroleum Inc. | O'Connor "A" #4 | 3,500 | 39132209 |
| 471137 | Dec 19, 1997 | Dec 19, 1997 | Copano Gas Unit | Copano Gas Unit #21 | 5,350 | 39101682 |
| 471305 | Dec 16, 1997 | Dec 16, 1997 | Wiser Oil Company, The | Shay "D" #5 | 6,200 | 39132210 |
| 471305Amendment | Dec 16, 1997 | Dec 16, 1997 | Wiser Oil Company, The | Shay "D" #5 | 6,200 | 39132210 |
| 471201 | Dec 16, 1997 | Dec 16, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D103D | 5,882 | 39100333 |
| 470128 | Dec 12, 1997 | Dec 12, 1997 | Quintana Pet. Corp. | Heard, Clement #14 | 5,894 | 39100851 |
| 469522 | Dec 2, 1997 | Dec 2, 1997 | CTR Petroleum, Inc. | Heard, A. W. J. "C" #16 | 3,650 | 39130461 |
| 470508 | Nov 24, 1997 | Nov 24, 1997 | Laroco LLP | La Rosa Unit #C 2 | 7,500 | 39132208 |
| 470430 | Nov 21, 1997 | Nov 21, 1997 | Laroco LLP | Rooke, B. D. #C 1 | 8,400 | 39132207 |
| 470201 | Nov 19, 1997 | Nov 19, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D 23 | 6,200 | 39100212 |
| 469978 | Nov 19, 1997 | Nov 19, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D106H | 5,904 | 39100295 |
| 470237 | Nov 18, 1997 | Nov 18, 1997 | Wiser Oil Company, The | Vincent "K" #5 | 5,700 | 39132206 |
| 470103 | Nov 18, 1997 | Nov 18, 1997 | C & E Operating, Inc. | Thomson-Barrow Corp. C #9 | 6,200 | 39132205 |
| 469914 | Nov 18, 1997 | Nov 18, 1997 | T - C Oil Company | O'Connor "H" #H 27 | 2,810 | 39131971 |
| 469742 | Nov 10, 1997 | Nov 10, 1997 | C & E Operating, Inc. | Thomson Barrow Corp. #C 8 | 6,100 | 39132204 |
| 469511 | Nov 7, 1997 | Nov 7, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #7 | 5,923 | 39100421 |
| 469627 | Nov 6, 1997 | Nov 6, 1997 | Quintana Pet. Corp. | Tom O'Connor (5800 Sd)fld. Unit #Q041 | 5,896 | 39101466 |
| 469662 | Nov 4, 1997 | Nov 4, 1997 | Wiser Oil Company, The | Welder "F" #39 | 4,001 | 39132203 |
| 469586 | Nov 4, 1997 | Nov 4, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #32 | 6,000 | 39101811 |
| 469538 | Oct 31, 1997 | Oct 31, 1997 | Anderson Oil Corporation | Kentucky-Fagan #5 | 6,100 | 39132202 |
| 469537 | Oct 31, 1997 | Oct 31, 1997 | Anderson Oil Corporation | Fagan -K- #8 | 2,600 | 39131517 |
| 469495 | Oct 30, 1997 | Oct 30, 1997 | Pennzoil Exploration & Prod. Co. | Lambert, M. F. #H 26 | 2,000 | 39101307 |
| 469097 | Oct 24, 1997 | Oct 24, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #49 | 8,350 | 39132033 |
| 467978 | Oct 23, 1997 | Oct 23, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'C' #52 | 5,905 | 39101144 |
| 468945 | Oct 17, 1997 | Oct 17, 1997 | Wiser Oil Company, The | Welder C #37 | 6,200 | 39132201 |
| 468734 | Oct 15, 1997 | Oct 15, 1997 | Quintana Pet. Corp. | Tom O'Connor 4400 Sand Gas Unit #Q205G | 5,425 | 39101141 |
| 468528 | Oct 7, 1997 | Oct 7, 1997 | Pennzoil Exploration & Prod. Co. | Lambert, M. F. #H26 | 3,500 | 39101307 |
| 468148 | Oct 3, 1997 | Oct 3, 1997 | Quintana Pet. Corp. | Williams, Maude et al 'A' #D15 | 5,850 | 39100278 |
| 468218 | Sep 30, 1997 | Sep 30, 1997 | Wiser Oil Company, The | Shay "D" #4 | 6,200 | 39132200 |
| 467890 | Sep 29, 1997 | Sep 29, 1997 | T - C Oil Company | O'Connor "H" #H 28 | 3,800 | 39132070 |
| 467890Amendment | Sep 29, 1997 | Sep 29, 1997 | T - C Oil Company | O'Connor "H" #H 28 | 4,000 | 39132070 |
| 466622 | Sep 26, 1997 | Sep 26, 1997 | Quintana Pet. Corp. | O'Connor, Thomas 'B' #17 | 6,200 | 39101829 |
| 467707 | Sep 18, 1997 | Sep 18, 1997 | Christopher Oil & Gas Inc | Pearl Swift Collins #2 | 8,400 | 39132199 |